正方形棱台的面积

GeoGebra 命令及参数

1. Circle(A, a) → c
2. Point(c) → B
3. Circle(B, a) → d
4. Intersect(c, d) → C, D, ,
5. Point(d) → E
6. Circle(E, a) → e
7. Intersect(e, c) → F, G, ,
8. Polygon(A, B, E, G) → poly1, a_1, b, e_1, g
9. Midpoint(g) → H
10. Midpoint(e_1) → I
11. Midpoint(b) → J
12. Midpoint(a_1) → K
13. Line(K, I) → f
14. Line(H, J) → h_1
15. Intersect(h_1, f) → L
16. Circle(L, a + h) → k
17. Intersect(k, h_1) → M, N
18. Intersect(k, f) → O, P
19. Polygon(B, N, E) → poly2, e_2, b_1, n_1
20. Polygon(G, P, E) → poly3, e_3, g_1, p
21. Polygon(A, M, G) → poly4, g_2, a_2, m
22. Polygon(A, O, B) → poly5, b_2, a_3, o
23. Line(L, yAxis) → i
24. Point(i) → Q
25. Angle(Q, L, M) → α
26. Angle(Q, L, O) → β
27. Angle(P, L, Q) → γ
28. Angle(N, L, Q) → δ
29. Rotate(M, -(n * α), L) → M'
30. Rotate(O, -(n * β), L) → O'
31. Polygon(A, M', G) → poly6, g_3, a_4, m'
32. Polygon(O', A, B) → poly7, b_3, o', a_5
33. Angle(N, B, Q) → ε
34. Rotate(P, n * γ, L) → P'
35. Polygon(G, P', E) → poly8, e_4, g_4, p'
36. Rotate(N, n * δ, L) → N'
37. Polygon(E, N', B) → poly9, b_4, e_5, n'
38. Polygon(B, E, N') → poly10, n'_1, b_5, e_6